Controller climbed cpr Y through cpr X's altitude without standard separation. System error.

Attributes
ACN	114857
Time
Date	198906
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : mmu
State Reference	NJ
Altitude	msl bound lower : 8000 msl bound upper : 8000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : n90 tower : dfw
Operator	general aviation : corporate
Make Model Name	Light Transport, Low Wing, 2 Turbojet Eng
Flight Phase	cruise other
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	general aviation : corporate
Make Model Name	Light Transport, Low Wing, 2 Turboprop Eng
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar
Experience	controller radar : 4
ASRS Report	114857
Person 2
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	non adherence : required legal separation non adherence : published procedure
Independent Detector	other controllera
Resolutory Action	none taken : insufficient time
Consequence	Other
Miss Distance	horizontal : 5500 vertical : 0
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Cpr X llt was on a vector to remain in my airspace due to no handoff taken by next controller. Cpr Y, an llt, was on a vector to miss noise sensitive area and remain in my airspace due to no handoff taken. Cpr X was in a slow rate of climb and I anticipated that if handoffs were not taken, cpr Y climb would be stopped below cpr X since their headings conflicted. Handoffs were taken, but cpr Y had increased rate of climb and before cpr X climb could be affected and cpr Y's climb stopped, the aircraft passed 1.1 mi apart, both at 8000'. My error in not judging cpr Y's climb correctly caused my efforts to maintain sep to fail. However. Other factors present limited my ability to perceive the different climb rate and resolve the traffic flow effectively. These factors are: 1) limited airspace to hold departures in my airspace. Solution: make airspace on different procedures. 2) vectoring around noise sensitive area (just recently incorporated into departure procedures) leaves very limited room to transit aircraft through airspace. Sol: more airspace needed than the present 5 mi corridor. 3) training in progress with no handoff position staffed. Solution: staff handoff.

Original NASA ASRS Text

Title: CTLR CLIMBED CPR Y THROUGH CPR X'S ALT WITHOUT STANDARD SEPARATION. SYSTEM ERROR.

Narrative: CPR X LLT WAS ON A VECTOR TO REMAIN IN MY AIRSPACE DUE TO NO HDOF TAKEN BY NEXT CTLR. CPR Y, AN LLT, WAS ON A VECTOR TO MISS NOISE SENSITIVE AREA AND REMAIN IN MY AIRSPACE DUE TO NO HDOF TAKEN. CPR X WAS IN A SLOW RATE OF CLB AND I ANTICIPATED THAT IF HDOFS WERE NOT TAKEN, CPR Y CLB WOULD BE STOPPED BELOW CPR X SINCE THEIR HDGS CONFLICTED. HDOFS WERE TAKEN, BUT CPR Y HAD INCREASED RATE OF CLB AND BEFORE CPR X CLB COULD BE AFFECTED AND CPR Y'S CLB STOPPED, THE ACFT PASSED 1.1 MI APART, BOTH AT 8000'. MY ERROR IN NOT JUDGING CPR Y'S CLB CORRECTLY CAUSED MY EFFORTS TO MAINTAIN SEP TO FAIL. HOWEVER. OTHER FACTORS PRESENT LIMITED MY ABILITY TO PERCEIVE THE DIFFERENT CLB RATE AND RESOLVE THE TFC FLOW EFFECTIVELY. THESE FACTORS ARE: 1) LIMITED AIRSPACE TO HOLD DEPS IN MY AIRSPACE. SOLUTION: MAKE AIRSPACE ON DIFFERENT PROCS. 2) VECTORING AROUND NOISE SENSITIVE AREA (JUST RECENTLY INCORPORATED INTO DEP PROCS) LEAVES VERY LIMITED ROOM TO TRANSIT ACFT THROUGH AIRSPACE. SOL: MORE AIRSPACE NEEDED THAN THE PRESENT 5 MI CORRIDOR. 3) TRNING IN PROGRESS WITH NO HDOF POS STAFFED. SOLUTION: STAFF HDOF.

Data retrieved from NASA's ASRS site as of August 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.